US Patent No: 7,680,522

Number of patents in Portfolio can not be more than 2000

Method and apparatus for detecting misapplied sensors

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ALSO PUBLISHED AS: 20080081967
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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and system are provided for determining whether a spectrophotometric sensor is misapplied. In one embodiment, a spectrophotometric sensor is provided with a strain sensor configures to provide a signal related to the curvature of the spectrophotometric sensor. In such an embodiment, the signal may be compared, such as by an associated monitor, with an expected signal value. Based upon this comparison, a determination may be made whether or not the spectrophotometric sensor is misapplied.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COVIDIEN LPMANSFIELD, MA2757

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andersohn, Lutz Livermore, CA 11 62
Andriola, Pete Alamo, CA 2 7

Cited Art Landscape

Patent Info (Count) # Cites Year
 
NELLCOR PURITAN BENNETT INCORPORATED (110)
4,802,486 Method and apparatus for detecting optical pulses 213 1985
4,685,464 Durable sensor for detecting optical pulses 273 1985
4,621,643 Calibrated optical oximeter probe 341 1986
4,653,498 Pulse oximeter monitor 345 1986
4,800,495 Method and apparatus for processing signals used in oximetry 235 1986
4,819,646 Feedback-controlled method and apparatus for processing signals used in oximetry 147 1986
4,859,056 Multiple-pulse method and apparatus for use in oximetry 134 1986
4,869,253 Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry 208 1986
4,913,150 Method and apparatus for the automatic calibration of signals employed in oximetry 251 1986
4,700,708 Calibrated optical oximeter probe 334 1986
4,830,014 Sensor having cutaneous conformance 225 1987
4,770,179 Calibrated optical oximeter probe 219 1987
4,869,254 Method and apparatus for calculating arterial oxygen saturation 259 1988
4,911,167 Method and apparatus for detecting optical pulses 298 1988
4,938,218 Perinatal pulse oximetry sensor 288 1988
4,928,692 Method and apparatus for detecting optical pulses 207 1988
4,892,101 Method and apparatus for offsetting baseline portion of oximeter signal 178 1989
4,934,372 Method and apparatus for detecting optical pulses 231 1989
5,259,381 Apparatus for the automatic calibration of signals employed in oximetry 206 1989
5,078,136 Method and apparatus for calculating arterial oxygen saturation based plethysmographs including transients 213 1989
5,109,849 Perinatal pulse oximetry sensor 175 1990
5,099,842 Perinatal pulse oximetry probe 148 1990
5,228,440 Fetal pulse oximetry apparatus and method of use 116 1990
5,226,417 Apparatus for the detection of motion transients 171 1991
5,218,962 Multiple region pulse oximetry probe and oximeter 185 1991
5,267,563 Oximeter sensor with perfusion enhancing 141 1991
5,351,685 Condensed oximeter system with noise reduction software 182 1991
5,209,230 Adhesive pulse oximeter sensor with reusable portion 217 1991
5,247,932 Sensor for intrauterine use 218 1991
5,246,002 Noise insensitive pulse transmittance oximeter 171 1992
5,246,003 Disposable pulse oximeter sensor 230 1992
RE35122 Method and apparatus for detecting optical pulses 174 1992
5,377,675 Method and apparatus for improved fetus contact with fetal probe 107 1992
5,368,224 Method for reducing ambient noise effects in electronic monitoring instruments 292 1992
5,368,026 Oximeter with motion detection for alarm modification 192 1993
5,469,845 Disposable pulse oximeter sensor 176 1993
5,485,847 Pulse oximeter using a virtual trigger for heart rate synchronization 132 1993
5,392,777 Oximeter sensor with perfusion enhancing 134 1993
5,560,355 Medical sensor with amplitude independent output 168 1993
5,507,286 Method and apparatus for improving the durability of a sensor 112 1993
5,421,329 Pulse oximeter sensor optimized for low saturation 151 1994
5,533,507 Condensed oximeter system with noise reduction software 123 1994
5,743,260 Fetal pulse oximetry apparatus and method of use 111 1995
5,782,237 Pulse oximeter and sensor optimized for low saturation 129 1995
RE36000 Adhesive pulse oximeter sensor with reusable portion 142 1995
5,577,500 Condensed oximeter system with noise reduction software 114 1995
5,779,630 Medical sensor with modulated encoding scheme 145 1995
5,673,693 Method and apparatus for improving the durability of a sensor 129 1995
5,678,544 Disposable pulse oximeter sensor 171 1995
5,676,141 Electronic processor for pulse oximeters 168 1995
5,743,263 Pulse Oximeter using a virtual trigger for heart rate synchronization 137 1995
5,839,439 Oximeter sensor with rigid inner housing and pliable overmold 141 1995
5,660,567 Medical sensor connector with removable encoding device 275 1995
5,724,967 Noise reduction apparatus for low level analog signals 99 1995
5,810,724 Reusable sensor accessory containing a conformable spring activated rubber sleeved clip 145 1995
5,807,247 Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes 148 1995
5,818,985 Optical oximeter probe adapter 129 1995
5,746,697 Medical diagnostic apparatus with sleep mode 187 1996
5,797,841 Shunt barrier in pulse oximeter sensor 132 1996
5,713,355 Method and apparatus for reducing ambient noise effects in electronic monitoring instruments 141 1996
5,752,914 Continuous mesh EMI shield for pulse oximetry sensor 126 1996
5,853,364 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 264 1996
5,842,982 Infant neonatal pulse oximeter sensor 114 1996
5,776,058 Pressure-attached presenting part fetal pulse oximetry sensor 109 1996
5,813,980 Fetal pulse oximetry sensor with remote securing mechanism 112 1996
5,823,952 Pulse oximeter sensor with differential slip coefficient 129 1996
5,727,547 Presenting part fetal oximeter sensor with securing mechanism for providing tension to scalp attachment 93 1996
5,803,910 Condensed oximeter system and method with noise reduction software 130 1996
5,961,450 Medical sensor with amplitude independent output 121 1996
5,782,756 Method and apparatus for in vivo blood constituent analysis 130 1996
5,851,179 Pulse oximeter sensor with articulating head 127 1996
6,018,673 Motion compatible sensor for non-invasive optical blood analysis 190 1996
5,830,136 Gel pad optical sensor 167 1996
5,921,921 Pulse oximeter with sigma-delta converter 139 1996
6,195,575 Fetal sensor which self-inflates using capillary force 92 1997
5,924,982 Oximeter sensor with user-modifiable color surface 94 1997
6,115,621 Oximetry sensor with offset emitters and detector 124 1997
5,910,108 Method and apparatus for improving the durability of a sensor 128 1997
5,924,979 Medical diagnostic apparatus with sleep mode 188 1997
5,885,213 Method and apparatus for reducing ambient noise effects in electronic monitoring instruments 137 1997
5,916,155 Fetal sensor with securing balloons remote from optics 102 1997
5,865,736 Method and apparatus for nuisance alarm reductions 177 1997
5,961,452 Positioning method for pulse oximetry fetal sensor 94 1997
6,023,541 Active optical oximeter probe adapter 145 1998
5,916,154 Method of enhancing performance in pulse oximetry via electrical stimulation 157 1998
6,064,899 Fiber optic oximeter connector with element indicating wavelength shift 96 1998
6,044,283 Medical sensor with modulated encoding scheme 194 1998
6,173,196 Shunt barrier in pulse oximeter sensor 119 1998
6,083,172 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 185 1998
6,112,107 Flexible sensor with bulge enhancing contact 131 1998
6,370,409 Positioning method for pulse oximetry fetal sensor 95 1999
6,374,129 Motion compatible sensor for non-invasive optical blood analysis 152 1999
6,411,833 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 159 1999
6,708,049 Sensor with signature of data relating to sensor 191 2000
6,430,423 Shunt barrier in pulse oximeter sensor 115 2000
6,721,584 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 134 2001
6,836,679 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 131 2002
6,671,530 Positioning method for pulse oximetry fetal sensor 92 2002
6,845,256 Motion compatible sensor for non-invasive optical blood analysis 158 2002
6,763,255 Shunt barrier in pulse oximeter sensor 114 2002
6,681,126 Method and apparatus for improving the durability of a sensor 110 2002
2004/0006,261 Oximeter sensor with digital memory encoding patient data 113 2003
7,130,671 Pulse oximeter sensor off detector 94 2004
2004/0162,472 Sensor with signature of data relating to sensor 115 2004
2005/0197,552 Pulse oximeter with alternate heart-rate determination 17 2004
2006/0224,058 Pulse oximetry sensor and technique for using the same on a distal region of a patient's digit 75 2005
2007/0032,710 Bi-stable medical sensor and technique for using the same 81 2005
2007/0078,316 Medical sensor and technique for using the same 35 2005
2007/0100,220 Adjusting parameters used in pulse oximetry analysis 12 2005
2006/0253,016 Systems and methods to assess one or more body fluid metrics 16 2005
 
MASIMO CORPORATION (108)
5,431,170 Pulse responsive device 447 1992
5,337,744 Low noise finger cot probe 390 1993
5,490,505 Signal processing apparatus 504 1993
5,482,036 Signal processing apparatus and method 460 1994
5,452,717 Finger-cot probe 378 1994
5,632,272 Signal processing apparatus 475 1994
5,638,818 Low noise optical probe 364 1994
5,758,644 Manual and automatic probe calibration 453 1995
5,769,785 Signal processing apparatus and method 397 1995
5,645,440 Patient cable connector 348 1995
5,782,757 Low-noise optical probes 404 1995
D393830 Patient cable connector 337 1995
5,685,299 Signal processing apparatus 384 1995
5,823,950 Manual and automatic probe calibration 335 1996
6,088,607 Low noise optical probe 402 1997
5,934,925 Patient cable connector 341 1997
6,002,952 Signal processing apparatus and method 446 1997
6,157,850 Signal processing apparatus 392 1997
5,890,929 Shielded medical connector 329 1997
6,081,735 Signal processing apparatus 534 1997
6,263,222 Signal processing apparatus 413 1997
6,184,521 Photodiode detector with integrated noise shielding 338 1998
5,919,134 Method and apparatus for demodulating signals in a pulse oximetry system 353 1998
6,011,986 Manual and automatic probe calibration 398 1998
5,995,855 Pulse oximetry sensor adapter 381 1998
6,525,386 Non-protruding optoelectronic lens 350 1998
5,997,343 Patient cable sensor switch 324 1998
6,229,856 Method and apparatus for demodulating signals in a pulse oximetry system 335 1998
6,067,462 Signal processing apparatus and method 389 1998
6,256,523 Low-noise optical probes 387 1998
6,036,642 Signal processing apparatus and method 371 1998
6,236,872 Signal processing apparatus 359 1998
6,144,868 Reusable pulse oximeter probe and disposable bandage apparatus 289 1999
6,334,065 Stereo pulse oximeter 382 1999
6,285,896 Fetal pulse oximetry sensor 329 1999
6,321,100 Reusable pulse oximeter probe with disposable liner 277 1999
6,349,228 Pulse oximetry sensor adapter 340 1999
6,343,224 Reusable pulse oximeter probe and disposable bandage apparatus 281 1999
6,580,086 Shielded optical probe and method 373 1999
6,206,830 Signal processing apparatus and method 355 1999
6,165,005 Patient cable sensor switch 319 1999
6,377,829 Resposable pulse oximetry sensor 362 1999
6,152,754 Circuit board based cable connector 349 1999
6,463,311 Plethysmograph pulse recognition processor 330 1999
6,606,511 Pulse oximetry pulse indicator 363 2000
6,515,273 System for indicating the expiration of the useful operating life of a pulse oximetry sensor 342 2000
6,584,336 Universal/upgrading pulse oximeter 374 2000
6,360,114 Pulse oximeter probe-off detector 359 2000
6,699,194 Signal processing apparatus and method 369 2000
6,430,525 Variable mode averager 325 2000
6,526,300 Pulse oximeter probe-off detection system 318 2000
6,470,199 Elastic sock for positioning an optical probe 335 2000
6,697,656 Pulse oximetry sensor compatible with multiple pulse oximetry systems 315 2000
6,770,028 Dual-mode pulse oximeter 343 2000
6,519,487 Reusable pulse oximeter probe and disposable bandage apparatus 280 2000
6,280,213 Patient cable connector 338 2000
6,542,764 Pulse oximeter monitor for expressing the urgency of the patient's condition 325 2000
6,643,530 Method and apparatus for demodulating signals in a pulse oximetry system 321 2000
6,501,975 Signal processing apparatus and method 382 2001
6,684,091 Reusable pulse oximeter probe and disposable bandage method 272 2001
6,541,756 Shielded optical probe having an electrical connector 343 2001
6,388,240 Shielded optical probe and method having a longevity indication 365 2001
6,684,090 Pulse oximetry data confidence indicator 384 2001
2002/0026,109 Low-noise optical probes 100 2001
6,792,300 Low-noise optical probes for reducing light piping 316 2001
6,721,585 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 271 2001
6,597,933 Pulse oximetry sensor adapter 329 2001
6,678,543 Optical probe and positioning wrap 389 2001
6,745,060 Signal processing apparatus 345 2001
6,650,917 Signal processing apparatus 372 2001
6,671,531 Sensor wrap including foldable applicator 348 2001
6,654,624 Pulse oximeter probe-off detector 354 2001
6,760,607 Ribbon cable substrate pulse oximetry sensor 301 2001
6,714,804 Stereo pulse oximeter 331 2001
6,658,276 Pulse oximeter user interface 349 2002
RE38492 Signal processing apparatus and method 327 2002
6,725,075 Resposable pulse oximetry sensor 330 2002
6,985,764 Flex circuit shielded optical sensor 282 2002
6,697,658 Low power pulse oximeter 349 2002
RE38476 Signal processing apparatus 328 2002
6,735,459 Reusable pulse oximeter probe and disposable bandage apparatus 276 2002
6,813,511 Low-noise optical probes for reducing ambient noise 324 2002
6,816,741 Plethysmograph pulse recognition processor 316 2002
6,934,570 Physiological sensor combination 299 2002
6,826,419 Signal processing apparatus and method 317 2002
6,830,711 Mold tool for an optoelectronic element 305 2003
7,067,893 Optoelectronic element with a non-protruding lens 251 2003
7,225,006 Attachment and optical probe 215 2003
6,822,564 Parallel measurement alarm processor 332 2003
6,950,687 Isolation and communication element for a resposable pulse oximetry sensor 293 2003
6,861,639 Systems and methods for indicating an amount of use of a sensor 307 2003
6,771,994 Pulse oximeter probe-off detection system 316 2003
6,850,788 Physiological measurement communications adapter 303 2003
7,132,641 Shielded optical probe having an electrical connector 254 2003
6,993,371 Pulse oximetry sensor adaptor 309 2003
7,096,054 Low noise optical housing 245 2003
6,898,452 Stereo pulse oximeter 290 2003
7,254,433 Signal processing apparatus 238 2003
7,096,052 Optical probe including predetermined emission wavelength based on patient type 237 2003
7,003,339 Method and apparatus for demodulating signals in a pulse oximetry system 268 2003
7,142,901 Parameter compensated physiological monitor 236 2003
6,996,427 Pulse oximetry data confidence indicator 329 2003
7,039,449 Resposable pulse oximetry sensor 273 2003
7,295,866 Low power pulse oximeter 209 2004
7,215,984 Signal processing apparatus 297 2004
7,024,233 Pulse oximetry data confidence indicator 281 2004
7,254,434 Variable pressure reusable sensor 223 2004
7,280,858 Pulse oximetry sensor 226 2005
 
COVIDIEN LP (68)
5,960,610 Method of curving a fetal sensor 92 1997
6,035,223 Method and apparatus for determining the state of an oximetry sensor 123 1997
6,094,592 Methods and apparatus for estimating a physiological parameter using transforms 192 1998
6,226,539 Pulse oximeter having a low power led drive 124 1999
6,298,252 Oximeter sensor with encoder connected to detector 131 1999
6,351,658 Multiple-code oximeter calibration element 115 1999
6,356,774 Oximeter sensor with encoded temperature characteristic 217 1999
6,466,808 Single device for both heating and temperature measurement in an oximeter sensor 118 1999
6,463,310 Method and circuit for storing and providing historical physiological data 153 2000
6,675,031 Method and circuit for indicating quality and accuracy of physiological measurements 127 2000
6,381,480 Method and apparatus for monitoring fetal cerebral oxygenation during childbirth 111 2000
6,490,466 Interconnect circuit between non-compatible oximeter and sensor 111 2000
6,571,113 Oximeter sensor adapter with coding element 119 2000
6,591,122 Device and method for monitoring body fluid and electrolyte disorders 166 2001
6,801,797 Pulse oximeter sensor with piece-wise function 180 2001
6,615,065 Multi-channel non-invasive tissue oximeter 170 2001
6,754,516 Nuisance alarm reductions in a physiological monitor 138 2001
6,719,686 Fetal probe having an optical imaging device 100 2001
6,553,241 Oximeter sensor with digital memory encoding sensor expiration data 287 2001
6,591,123 Oximeter sensor with digital memory recording sensor data 137 2001
6,600,940 Oximeter sensor with digital memory 133 2001
6,606,510 Oximeter sensor with digital memory encoding patient data 111 2001
6,628,975 Oximeter sensor with digital memory storing data 117 2001
6,701,170 Blind source separation of pulse oximetry signals 164 2001
6,839,579 Temperature indicating oximetry sensor 112 2001
6,694,160 Pulse oximeter sensor with widened metal strip 101 2001
6,748,254 Stacked adhesive optical sensor 132 2002
7,006,856 Signal quality metrics design for qualifying data for a physiological monitor 120 2003
7,085,597 Oximeter sensor with digital memory recording sensor data 101 2003
7,236,811 Device and method for monitoring body fluid and electrolyte disorders 118 2003
7,047,056 Hat-based oximeter sensor 84 2003
7,079,880 Blind source separation of pulse oximetry signals 95 2003
2004/0117,891 Headband with tension indicator 100 2003
7,289,837 Forehead sensor placement 24 2003
7,162,288 Techniques for detecting heart pulses and reducing power consumption in sensors 86 2004
2005/0197,579 Method and apparatus for optical detection of mixed venous and arterial blood pulsation in tissue 34 2004
7,194,293 Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics 33 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
2005/0203,357 Pulse oximetry motion artifact rejection using near infrared absorption by water 15 2004
7,277,741 Pulse oximetry motion artifact rejection using near infrared absorption by water 26 2004
2004/0171,920 Pulse oximeter sensor with piece-wise function 109 2004
7,113,815 Stacked adhesive optical sensor 104 2004
7,123,950 Nuisance alarm reductions in a physiological monitor 115 2004
2007/0068,527 Method and system for determining when to reposition a physiological sensor 2 2005
2007/0073,121 Medical sensor for reducing motion artifacts and technique for using the same 65 2005
2006/0030,764 Method and circuit for indicating quality and accuracy of physiological measurements 110 2005
2007/0077,200 Method and system for controlled maintenance of hypoxia for therapeutic or diagnostic purposes 62 2005
2007/0118,027 Method for evaluating extracellular water concentration in tissue 12 2005
2006/0135,860 Signal quality metrics design for qualifying data for a physiological monitor 8 2005
2007/0179,369 System and method for detection of unstable oxygen saturation 4 2006
2006/0195,028 Hat-based oximeter sensor 84 2006
7,209,774 Pulse oximeter with separate ensemble averaging for oxygen saturation and heart rate 15 2006
2006/0276,700 Stacked adhesive optical sensor 50 2006
2006/0264,726 Forehead sensor placement 25 2006
2006/0264,727 Forehead sensor placement 23 2006
2006/0281,984 Forehead sensor placement 25 2006
2007/0032,712 Unitary medical sensor assembly and technique for using the same 79 2006
2007/0032,715 Compliant diaphragm medical sensor and technique for using the same 72 2006
2007/0073,125 Medical sensor for reducing motion artifacts and technique for using the same 59 2006
2007/0073,128 Medical sensor for reducing motion artifacts and technique for using the same 60 2006
2007/0073,126 Medical sensor and technique for using the same 83 2006
2007/0106,137 Pulse oximetry signal correction using near infrared absorption by water 22 2006
2007/0208,242 Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics 6 2007
 
DATEX-OHMEDA, INC. (68)
4,603,700 Probe monitoring system for oximeter 145 1983
4,781,195 Blood monitoring apparatus and methods with amplifier input dark current correction 151 1987
4,800,885 Blood constituent monitoring apparatus and methods with frequency division multiplexing 213 1987
4,846,183 Blood parameter monitoring apparatus and methods 173 1987
5,249,576 Universal pulse oximeter probe 313 1991
5,297,548 Arterial blood monitoring probe 211 1993
5,387,122 Pulse oximeter probe connector 153 1993
5,912,656 Device for producing a display from monitored data 138 1994
5,503,148 System for pulse oximetry SPO.sub.2 determination 179 1994
5,676,139 Spring clip probe housing 122 1994
5,934,277 System for pulse oximetry SpO2 determination 183 1995
5,851,178 Instrumented laser diode probe connector 116 1995
5,685,301 Apparatus for precise determination of operating characteristics of optical devices contained in a monitoring probe 115 1995
5,638,593 Method for manufacturing a heat-sealed neo-natal medical monitoring probe 122 1995
6,253,097 Noninvasive medical monitoring instrument using surface emitting laser devices 199 1996
5,790,729 Photoplethysmographic instrument having an integrated multimode optical coupler device 130 1996
5,807,248 Medical monitoring probe with modular device housing 131 1996
5,782,758 Method and apparatus for identifying the presence of noise in a time division multiplexed oximeter 99 1996
5,891,022 Apparatus for performing multiwavelength photoplethysmography 129 1996
5,766,127 Method and apparatus for improved photoplethysmographic perfusion-index monitoring 137 1996
5,842,979 Method and apparatus for improved photoplethysmographic monitoring of oxyhemoglobin, deoxyhemoglobin, carboxyhemoglobin and methemoglobin 133 1997
5,954,644 Method for ambient light subtraction in a photoplethysmographic measurement instrument 149 1997
5,817,010 Disposable sensor holder 146 1997
5,827,182 Multiple LED sets in oximetry sensors 115 1997
5,913,819 Injection molded, heat-sealed housing and half-etched lead frame for oximeter sensor 114 1997
5,919,133 Conformal wrap for pulse oximeter sensor 164 1997
5,891,024 Two stage calibration and analyte measurement scheme for spectrophotomeric analysis 127 1997
6,018,674 Fast-turnoff photodiodes with switched-gain preamplifiers in photoplethysmographic measurement instruments 121 1997
5,983,122 Apparatus and method for improved photoplethysmographic monitoring of multiple hemoglobin species using emitters having optimized center wavelengths 118 1997
6,014,576 Segmented photoplethysmographic sensor with universal probe-end 143 1998
5,920,263 De-escalation of alarm priorities in medical devices 125 1998
6,385,471 System for pulse oximetry SpO2 determination 109 1999
6,360,113 Photoplethysmographic instrument 113 1999
6,363,269 Synchronized modulation/demodulation method and apparatus for frequency division multiplexed spectrophotometric system 114 1999
6,381,479 Pulse oximeter with improved DC and low frequency rejection 92 1999
6,397,092 Oversampling pulse oximeter 128 1999
6,408,198 Method and system for improving photoplethysmographic analyte measurements by de-weighting motion-contaminated data 126 2000
6,434,408 Pulse oximetry method and system with improved motion correction 118 2000
6,505,060 Method and apparatus for determining pulse oximetry differential values 112 2000
6,466,809 Oximeter sensor having laminated housing with flat patient interface surface 132 2000
6,505,133 Simultaneous signal attenuation measurements utilizing code division multiplexing 113 2000
6,560,470 Electrical lockout photoplethysmographic measurement system 145 2000
2002/0068,859 Laser diode drive scheme for noise reduction in photoplethysmographic measurements 98 2000
6,501,974 Compensation of human variability in pulse oximetry 164 2001
6,510,329 Detection of sensor off conditions in a pulse oximeter 288 2001
2002/0156,354 Pulse oximetry sensor with improved spring 149 2001
6,505,061 Pulse oximetry sensor with improved appendage cushion 123 2001
6,668,183 Diode detection circuit 137 2001
6,714,803 Pulse oximetry SpO2 determination 121 2001
2003/0073,889 Monitoring led wavelength shift in photoplethysmography 88 2001
6,882,874 Compensation of human variability in pulse oximetry 117 2002
6,702,752 Monitoring respiration based on plethysmographic heart rate signal 123 2002
6,709,402 Apparatus and method for monitoring respiration with a pulse oximeter 123 2002
6,805,673 Monitoring mayer wave effects based on a photoplethysmographic signal 105 2002
6,778,923 Reduced cross talk pulse oximeter 110 2002
6,748,253 Oversampling pulse oximeter 112 2002
6,707,257 Ferrite stabilized LED drive 93 2002
6,720,734 Oximeter with nulled op-amp current feedback 115 2002
6,825,619 Feedback-controlled LED switching 116 2002
6,839,582 Pulse oximetry method and system with improved motion correction 113 2002
6,745,061 Disposable oximetry sensor 130 2002
6,650,918 Cepstral domain pulse oximetry 101 2003
7,190,987 Neonatal bootie wrap 100 2003
2004/0039,273 Cepstral domain pulse oximetry 94 2003
2005/0075,550 Quick-clip sensor holder 102 2003
7,139,599 Cepstral domain pulse oximetry 54 2003
7,062,307 Oversampling pulse oximeter 93 2004
6,931,269 Multi-domain motion estimation and plethysmographic recognition using fuzzy neural-nets 154 2004
 
NIHON KOHDEN CORPORATION (27)
4,832,484 Apparatus for determining the concentration of a light-absorbing material in blood 153 1987
5,127,406 Apparatus for measuring concentration of substances in blood 135 1989
5,313,940 Photo-electric pulse wave measuring probe 155 1992
5,267,562 Pulse oximeter with probe difference compensation 148 1992
5,385,143 Apparatus for measuring predetermined data of living tissue 204 1993
5,355,882 Pulse oximeter 144 1993
5,427,093 Oximeter probe 126 1993
5,413,101 Pulse oximeter probe 140 1994
5,520,177 Oximeter probe 153 1994
5,521,851 Noise reduction method and apparatus 111 1994
5,595,176 Pulse oximeter 130 1994
5,766,125 Apparatus for determining the concentration of light-absorbing materials in blood 110 1995
5,551,423 Pulse oximeter probe 143 1995
5,590,652 Drive circuit for light-emitting diode in pulse oximeter 117 1996
5,666,952 Tissue transmitted light sensor 100 1996
5,995,859 Method and apparatus for accurately measuring the saturated oxygen in arterial blood by substantially eliminating noise from the measurement signal 167 1997
6,154,667 Pulse oximeter probe 162 1998
6,230,035 Apparatus for determining concentrations of light-absorbing materials in living tissue 174 1999
6,453,184 Device for measuring light absorption materials in blood 112 2000
6,671,526 Probe and apparatus for determining concentration of light-absorbing materials in living tissue 158 2000
6,665,551 Current driving system of light emitting diode 110 2000
6,546,267 Biological sensor 168 2000
2002/0038,078 Apparatus for measuring/determining concentrations of light absorbing materials in blood 109 2001
2003/0100,840 Pulse photometry probe 87 2002
6,780,158 Signal processing method and pulse wave signal processing method 113 2002
7,025,728 Method for reducing noise, and pulse photometer using the method 91 2003
2004/0092,805 Signal processing method, and pulse photometer using the method 106 2003
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (17)
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5,299,120 Method for digitally processing signals containing information regarding arterial blood flow 132 1989
5,188,108 Sensor, apparatus and method for non-invasive measurement of oxygen saturation 189 1991
5,285,783 Sensor, apparatus and method for non-invasive measurement of oxygen saturation 169 1992
5,285,784 Sensor, apparatus and method for non-invasive measurement of oxygen saturation 134 1992
5,343,869 Method and system for monitoring vital signs 300 1993
5,413,099 Medical sensor 143 1993
5,611,337 Pulsoximetry ear sensor 127 1995
5,709,205 Pulsoximetry sensor 103 1995
5,800,348 Apparatus and method for medical monitoring, in particular pulse oximeter 154 1996
5,776,059 Sensor for performing medical measurements, particularly pulsoximetry measurements on the human finger 103 1996
5,846,190 Method of and apparatus for recognizing falsified pulse oximetry measurements 130 1996
6,005,658 Intermittent measuring of arterial oxygen saturation of hemoglobin 107 1997
6,631,281 Recognition of a useful signal in a measurement signal 148 2002
6,654,623 Interference suppression for measuring signals with periodic wanted signals 165 2002
7,272,426 Finger medical sensor 75 2004
2006/0247,501 System and method for detecting signal artifacts 79 2004
 
RIC INVESTMENTS, LLC. (14)
5,448,991 Method of measuring the oxygen saturation in pulsating blood flow 151 1992
5,398,680 Pulse oximeter with improved accuracy and response time 138 1992
5,820,550 Pulse oximeter with improved accuracy and response time 122 1995
5,891,026 Extended life disposable pulse oximetry sensor and method of making 115 1996
6,026,312 Method and apparatus for diode laser pulse oximetry using fiber optical cables 110 1997
6,073,038 Extended life disposable pulse oximetry sensor 110 1998
6,149,481 Extended life disposable pulse oximetry sensor and method of making 107 1998
6,095,974 Disposable fiber optic probe 124 1998
6,519,486 Method, apparatus and system for removing motion artifacts from measurements of bodily parameters 163 2000
6,810,277 Method, apparatus and system for removing motion artifacts from measurements of bodily parameters 160 2002
6,671,532 Pulse oximetry sensor and dispensing method 96 2002
6,839,580 Adaptive calibration for pulse oximetry 110 2002
6,941,162 Pulse oximetry sensor and dispensing method 93 2003
7,072,702 Method, apparatus and system for removing motion artifacts from measurements of bodily parameters 101 2004
 
NELLCOR PURITAN BENNETT LLC (12)
5,361,758 Method and device for measuring concentration levels of blood constituents non-invasively 273 1991
5,429,128 Finger receptor 130 1993
5,465,714 Electro-optical sensor for spectrophotometric medical devices 134 1994
5,482,034 Method and apparatus for spectrophotometric cerebral oximetry and the like 150 1994
5,584,296 Patient sensor for optical cerebral oximeters and the like 173 1994
5,645,060 Method and apparatus for removing artifact and noise from pulse oximetry 209 1995
5,795,292 Method for improving signal-to-noise in clinical spectrometric procedures 112 1996
7,248,910 Physiological parameter monitoring system and sensor assembly for same 103 2002
2006/0258,921 Method of analyzing and processing signals 108 2004
7,315,753 Pulse oximeter with parallel saturation calculation modules 101 2004
2005/0085,735 Method and apparatus for estimating a physiological parameter 33 2004
7,302,284 Pulse oximeter with parallel saturation calculation modules 14 2005
 
NELLCOR, INCORPORATED (11)
5,402,777 Methods and devices for facilitated non-invasive oxygen monitoring 127 1992
5,348,004 Electronic processor for pulse oximeter 167 1993
5,555,882 Method and apparatus for reducing ambient noise effects in electronic monitoring instruments 135 1994
5,524,617 Isolated layer pulse oximetry 128 1995
5,995,856 Non-contact optical monitoring of physiological parameters 183 1995
5,662,106 Oximeter with motion detection for alarm modification 146 1996
5,746,206 Isolated layer pulse oximetry 127 1996
6,272,363 Pulse oximeter and sensor optimized for low saturation 130 1998
6,370,408 Medical sensor with amplitude independent output 117 1999
6,662,033 Pulse oximeter and sensor optimized for low saturation 126 2001
2005/0143,634 Method and apparatus for estimating a physiological parameter 36 2005
 
ORSENSE LTD. (10)
6,213,952 Optical device for non-invasive measurement of blood related signals utilizing a finger holder 124 1999
6,400,971 Optical device for non-invasive measurement of blood-related signals and a finger holder therefor 118 1999
6,400,972 Non-invasive method and system of optical measurements for determining the concentration of a substance in blood 118 1999
6,587,704 Method for non-invasive optical measurements of blood parameters 119 2000
6,983,178 Probe for use in non-invasive measurements of blood related parameters 128 2001
6,731,963 Device for enhancement and quality improvement of blood-related signals for use in a system for non-invasive measurements of blood-related signals 114 2001
6,711,424 Method of optical measurement for determing various parameters of the patient's blood 168 2002
6,993,372 Method and system for use in non-invasive optical measurements of blood parameters 94 2003
7,133,711 Method and system for decomposition of multiple channel signals 92 2003
7,043,289 Method of optical measurements for determining various parameters of the patient's blood 105 2004
 
HAMAMATSU PHOTONICS K.K. (8)
4,901,238 Oximeter with monitor for detecting probe dislodgement 100 1988
4,908,762 Oximeter with system for testing transmission path 142 1988
5,253,646 Diagnostic apparatus for measuring changes of arterial and venous blood volumes in brain with respiration signal modulation 116 1992
5,582,169 Method and apparatus for measuring concentration of absorptive constituent in scattering medium 107 1994
5,632,273 Method and means for measurement of biochemical components 123 1994
6,240,305 Method and apparatus for measuring absorption information of a scattering medium 101 1999
6,233,470 Absorption information measuring method and apparatus of scattering medium 92 1999
6,236,871 Absorption information measuring method and apparatus of scattering medium 92 1999
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (8)
5,058,588 Oximeter and medical sensor therefor 217 1989
5,287,853 Adapter cable for connecting a pulsoximetry sensor unit to a medical measuring device 123 1992
5,349,519 Method for digitally processing signals containing information regarding arterial blood flow 106 1993
5,413,102 Medical sensor 105 1994
5,517,988 Method for detecting an irregular state in a non-invasive pulse oximeter system 118 1994
6,083,157 Method and apparatus for the non-invasive determination of the concentration of a component 102 1998
6,122,535 Method and apparatus for determining the concentration of a component 152 1998
6,725,074 Quality indicator for measurement signals, in particular, for medical measurement signals such as those used in measuring oxygen saturation 133 2002
 
CERCACOR LABORATORIES, INC. (7)
5,760,910 Optical filter for spectroscopic measurement and method of producing the optical filter 319 1995
5,860,919 Active pulse blood constituent monitoring method 355 1997
5,940,182 Optical filter for spectroscopic measurement and method of producing the optical filter 320 1998
6,278,522 Optical filter for spectroscopic measurement and method of producing the optical filter 320 1999
6,920,345 Optical sensor including disposable and reusable elements 287 2003
7,003,338 Method and apparatus for reducing coupling between signals 258 2003
7,027,849 Blood parameter measurement system 307 2003
 
JOHNSON & JOHNSON MEDICAL, INC. (7)
4,825,879 Pulse oximeter sensor 207 1987
4,848,901 Pulse oximeter sensor control system 197 1987
4,807,631 Pulse oximetry system 190 1987
4,825,872 Finger sensor for pulse oximetry system 183 1988
5,253,645 Method of producing an audible alarm in a blood pressure and pulse oximeter monitor 118 1991
5,309,908 Blood pressure and pulse oximeter monitor 128 1993
5,731,582 Surface sensor device 91 1996
 
NON-INVASIVE TECHNOLOGY, INC. (6)
6,192,260 Methods and apparatus for examining tissue in vivo using the decay characteristics of scattered electromagnetic radiation 111 1992
5,353,799 Examination of subjects using photon migration with high directionality techniques 175 1992
5,564,417 Pathlength corrected oximeter and the like 201 1993
5,553,614 Examination of biological tissue using frequency domain spectroscopy 190 1993
5,779,631 Spectrophotometer for measuring the metabolic condition of a subject 219 1995
6,263,221 Quantitative analyses of biological tissue using phase modulation spectroscopy 120 1997
 
PROTHIA (6)
5,425,362 Fetal sensor device 134 1993
6,308,089 Limited use medical probe 256 1999
6,339,715 Method and apparatus for processing a physiological signal 114 1999
6,449,501 Pulse oximeter with signal sonification 125 2000
6,647,280 Method and apparatus for processing a physiological signal 107 2002
6,711,425 Pulse oximeter with calibration stabilization 160 2002
 
SAMSUNG ELECTRONICS CO., LTD. (6)
6,026,314 Method and device for noninvasive measurements of concentrations of blood components 159 1998
6,714,805 Method and apparatus for noninvasively monitoring hemoglobin concentration and oxygen saturation 116 2002
6,990,426 Diagnostic method and apparatus using light 94 2003
2004/0024,326 Probe for use in measuring a biological signal and biological signal measuring system incorporating the probe 96 2003
2004/0204,865 Method of removing abnormal data and blood component spectroscopy analysis system employing the same 87 2004
7,209,775 Ear type apparatus for measuring a bio signal and measuring method therefor 88 2004
 
SENSORMEDICS CORPORATION (6)
4,824,242 Non-invasive oximeter and method 260 1986
5,343,818 Photoplethysmographics using energy-reducing waveform shaping 100 1991
5,349,952 Photoplethysmographics using phase-division multiplexing 119 1991
5,349,953 Photoplethysmographics using component-amplitude-division multiplexing 113 1991
5,425,360 Molded pulse oximeter sensor 124 1994
5,671,529 Method of forming a molded pulse oximeter sensor 93 1995
 
The United States of America as represented by the Secretary of the Army (6)
6,144,867 Self-piercing pulse oximeter sensor assembly 98 1999
6,253,098 Disposable pulse oximeter assembly and protective cover therefor 98 1999
6,256,524 Pulse oximeter sensor combined with a combination oropharyngeal airway and bite block 117 1999
6,263,223 Method for monitoring arterial oxygen saturation 111 1999
6,266,547 Nasopharyngeal airway with reflectance pulse oximeter sensor 92 1999
6,470,200 Pacifier pulse oximeter sensor 99 2001
 
TOSHIBA AMERICA RESEARCH, INC. (6)
2002/0191,558 Distributed soft handoff among IP-based base stations 1 2001
2002/0191,558 Distributed soft handoff among IP-based base stations 1 2001
2002/0191,558 Distributed soft handoff among IP-based base stations 1 2001
2002/0191,558 Distributed soft handoff among IP-based base stations 1 2001
2002/0191,558 Distributed soft handoff among IP-based base stations 1 2001
2002/0191,558 Distributed soft handoff among IP-based base stations 1 2001
 
Criticare Systems, Inc. (5)
4,960,126 ECG synchronized pulse oximeter 206 1988
5,438,986 Optical sensor 122 1993
5,842,981 Direct to digital oximeter 199 1996
6,163,715 Direct to digital oximeter and method for calculating oxygenation levels 164 1998
6,526,301 Direct to digital oximeter and method for calculating oxygenation levels 160 2000
 
DOLPHIN MEDICAL, INC. (5)
5,217,012 Noninvasive oximeter probe 135 1991
5,329,922 Oximetric esophageal probe 126 1992
5,368,025 Non-invasive oximeter probe 132 1993
5,429,129 Apparatus for determining spectral absorption by a specific substance in a fluid 210 1993
7,020,507 Separating motion from cardiac signals using second order derivative of the photo-plethysmogram and fast fourier transforms 129 2003
 
DRAEGER MEDICAL SYSTEMS, INC. (5)
5,491,299 Flexible multi-parameter cable 166 1994
5,971,930 Method and apparatus for removing artifact from physiological signals 121 1997
6,574,491 Method and apparatus for detecting a physiological parameter 97 2001
6,773,397 System for processing signal data representing physiological parameters 121 2002
6,863,652 Power conserving adaptive control system for generating signal in portable medical devices 134 2003
 
INSTRUMENTARIUM CORP. (5)
5,099,841 Measurement of the composition of blood 104 1990
6,285,895 Measuring sensor for monitoring characteristics of a living tissue 207 1998
6,041,247 Non-invasive optical measuring sensor and measuring method 159 1998
6,791,689 Sensor assembly and method for measuring nitrogen dioxide 91 2000
6,963,767 Pulse oximeter 67 2002
 
OMRON HEALTHCARE CO., LTD. (5)
4,854,699 Backscatter oximeter 148 1987
5,007,423 Oximeter sensor temperature control 177 1989
5,025,791 Pulse oximeter with physical motion sensor 215 1990
5,203,329 Noninvasive reflectance oximeter sensor providing controlled minimum optical detection depth 106 1991
5,224,478 Reflecting-type oxymeter probe 166 1992
 
SEIKO EPSON CORPORATION (5)
6,022,321 Blood pulse wave detecting apparatus and motion intensity measuring apparatus 108 1997
6,081,742 Organism state measuring device and relaxation instructing device 114 1998
6,198,951 Reflection photodetector and biological information measuring instrument 106 1999
6,361,501 Pulse wave diagnosing device 159 1999
6,217,523 Blood pulse wave detecting apparatus and motion intensity measuring apparatus 108 1999
 
SPACELABS HEALTHCARE, LLC (5)
5,680,857 Alignment guide system for transmissive pulse oximetry sensors 132 1992
5,687,722 System and method for the algebraic derivation of physiological signals 119 1995
5,588,427 Enhancement of physiological signals using fractal analysis 159 1995
5,692,505 Data processing systems and methods for pulse oximeters 104 1996
5,817,008 Conformal pulse oximetry sensor and monitor 150 1996
 
Essential Medical Devices, Inc. (4)
5,810,723 Non-invasive carboxyhemoglobin analyer 122 1996
6,064,898 Non-invasive blood component analyzer 206 1998
6,397,093 Non-invasive carboxyhemoglobin analyzer 116 2000
6,615,064 Non-invasive blood component analyzer 192 2000
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (4)
5,964,701 Patient monitoring finger ring sensor 220 1997
6,402,690 Isolating ring sensor design 123 2000
6,699,199 Photoplethysmograph signal-to-noise line enhancement 92 2002
6,947,781 Vibratory venous and arterial oximetry sensor 112 2003
 
Minolta Camera Kabushiki Kaisha (4)
4,586,513 Noninvasive device for photoelectrically measuring the property of arterial blood 197 1983
4,714,341 Multi-wavelength oximeter having a means for disregarding a poor signal 288 1985
4,694,833 Noninvasive device for photoelectrically measuring the property of arterial blood 168 1986
4,942,877 Device for measuring oxygen saturation degree in arterial blood 277 1987
 
TERUMO CARDIOVASCULAR SYSTEMS CORPORATION (4)
5,104,623 Apparatus and assembly for use in optically sensing a compositional blood parameter 107 1990
5,291,884 Apparatus for measuring a blood parameter 121 1991
5,553,615 Method and apparatus for noninvasive prediction of hematocrit 196 1994
5,755,226 Method and apparatus for noninvasive prediction of hematocrit 163 1996
 
UNION TRUST COMPANY (4)
4,759,369 Pulse oximeter 146 1986
4,865,038 Sensor appliance for non-invasive monitoring 214 1986
5,190,038 Pulse oximeter with improved accuracy and response time 233 1989
5,170,786 Reusable probe system 169 1991
 
UNIVERSITY OF SOUTH FLORIDA (4)
5,575,284 Portable pulse oximeter 341 1994
5,830,137 Green light pulse oximeter 192 1996
6,011,985 Medical diagnostic instrument using light-to-frequency converter 162 1996
6,330,468 System using green light to determine parmeters of a cardiovascular system 158 1998
 
AGILENT TECHNOLOGIES, INC. (3)
5,152,296 Dual-finger vital signs monitor 213 1990
6,150,951 Medical telemetry system with wireless and physical communication channels 116 1998
6,178,343 Pulse rate and heart rate coincidence detection for pulse oximetry 111 1999
 
BETA BIOMED SERVICES, INC. (3)
6,909,912 Non-invasive perfusion monitor and system, specially configured oximeter probes, methods of using same, and covers for probes 113 2002
7,024,235 Specially configured nasal pulse oximeter/photoplethysmography probes, and combined nasal probe/cannula, selectively with sampler for capnography, and covering sleeves for same 140 2003
7,127,278 Specially configured lip/cheek pulse oximeter/photoplethysmography probes, selectively with sampler for capnography, and covering sleeves for same 143 2004
 
CONMED CORPORATION (3)
6,658,277 Signal processing method and device for signal-to-noise improvement 169 2001
7,060,035 Signal processing method and device for signal-to-noise improvement 93 2003
7,027,850 Signal processing method and device for signal-to-noise improvement 108 2003
 
FIRST BANK NATIONAL ASSOCIATION (3)
4,773,422 Single channel pulse oximeter 226 1987
RE33643 Pulse oximeter with circuit leakage and ambient light compensation 122 1990
5,490,523 Finger clip pulse oximeter 158 1994
 
GE MEDICAL SYSTEMS INFORMATION TECHNOLOGIES, INC. (3)
6,519,484 Pulse oximetry sensor 97 2000
6,801,802 System and method for selecting physiological data from a plurality of physiological data sources 111 2001
7,305,262 Apparatus and method for acquiring oximetry and electrocardiogram signals 95 2003
 
In-Line Diagnostics Corporation (3)
5,499,627 System for noninvasive hematocrit monitoring 167 1994
6,266,546 System for noninvasive hematocrit monitoring 148 1998
6,181,958 Method and apparatus for non-invasive blood constituent monitoring 197 1999
 
ISIS INNOVATION LIMITED (3)
2003/0187,337 Combining measurements from different sensors 118 2003
6,839,659 System and method for acquiring data 116 2003
2005/0004,479 Locating features in a photoplethysmograph signal 92 2004
 
MR HOLDINGS (HK) LIMITED (3)
5,090,410 Fastener for attaching sensor to the body 182 1989
5,987,343 Method for storing pulse oximetry sensor characteristics 175 1997
5,995,858 Pulse oximeter 120 1997
 
Nicolay GmbH (3)
5,094,240 Pulse/oxygen sensor and method of making 144 1989
5,035,243 Holder sleeve for positioning a detecting and measuring sensor 139 1989
5,054,488 Optoelectronic sensor for producing electrical signals representative of physiological values 144 1990
 
OPTICAL SENSORS INCORPORATED (3)
6,865,407 Calibration technique for non-invasive medical devices 121 2002
6,763,256 Pulse oximeter 112 2002
6,879,850 Pulse oximeter with motion detection 126 2002
 
Optix LP (3)
6,222,189 Methods of enhancing optical signals by mechanical manipulation in non-invasive testing 145 1998
6,411,832 Method of improving reproducibility of non-invasive measurements 100 1999
6,992,772 Method and apparatus for optical sampling to reduce interfering variances 87 2003
 
RADIOMETER BASEL AG (3)
6,151,107 Method of non-invasive determination of oxygen saturation in tissue in which blood is circulating 106 1999
6,181,959 Detection of parasitic signals during pulsoxymetric measurement 143 1999
6,654,622 Device for the combined measurement of the arterial oxygen saturation and the transcutaneous CO2 partial pressure on an ear lobe 116 1999
 
SANDIA CORPORATION (3)
5,355,880 Reliable noninvasive measurement of blood gases 355 1992
5,494,032 Oximeter for reliable clinical determination of blood oxygen saturation in a fetus 260 1994
5,630,413 Reliable noninvasive measurement of blood gases 261 1994
 
SIEMENS AKTIENGESELLSCHAFT (3)
5,924,980 Method and apparatus for adaptively reducing the level of noise in an acquired signal 158 1998
6,135,952 Adaptive filtering of physiological signals using a modeled synthetic reference signal 118 1999
6,285,894 Method and device for non-invasive in vivo determination of blood constituents 108 1999
 
SMITHS MEDICAL ASD, INC. (3)
5,437,275 Pulse oximetry sensor 148 1994
6,654,621 Finger oximeter with finger grip suspension system 121 2001
6,643,531 Combination fingerprint and oximetry device 98 2002
 
SOMANETICS CORPORATION (3)
5,140,989 Examination instrument for optical-response diagnostic apparatus 134 1986
5,217,013 Patient sensor for optical cerebral oximeter and the like 171 1991
5,902,235 Optical cerebral oximeter 169 1996
 
SUMITOMO ELECTRIC INDUSTRIES, LTD. (3)
4,867,557 Reflection type oximeter for applying light pulses to a body tissue to measure oxygen saturation 201 1988
4,974,591 Bio-photosensor 164 1988
4,926,867 Light-reflecting and heating type oximeter 164 1989
 
WOOLSTHORPE TECHNOLOGIES (3)
6,480,729 Method for determining blood constituents 124 2001
6,819,950 Method for noninvasive continuous determination of physiologic characteristics 136 2001
6,719,705 Device and method for noninvasive continuous determination of physiologic characteristics 113 2002
 
AMO MANUFACTURING USA, LLC (2)
6,419,671 Optical feedback system for vision correction 112 1999
6,793,654 Optical feedback system for vision correction 101 2002
 
AVL MEDICAL INSTRUMENTS AG (2)
4,890,619 System for the measurement of the content of a gas in blood, in particular the oxygen saturation of blood 147 1987
5,299,570 System for measuring the saturation of at least one gas, particularly the oxygen saturation of blood 178 1992
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (2)
6,498,942 Optoacoustic monitoring of blood oxygenation 127 2000
2005/0043,599 Pulse oximetry device and method 98 2004
 
BODY SCIENCE LLC (2)
7,215,991 Wireless medical diagnosis and monitoring equipment 132 2003
2007/0208,235 Wireless medical diagnosis and monitoring equipment 49 2007
 
CAS MEDICAL SYSTEMS, INC. (2)
6,456,862 Method for non-invasive spectrophotometric blood oxygenation monitoring 115 2001
7,072,701 Method for spectrophotometric blood oxygenation monitoring 101 2003
 
COLIN MEDICAL TECHNOLOGY CORPORATION (2)
5,131,391 Pulse oxymeter having probe with warming means 146 1990
5,216,598 System for correction of trends associated with pulse wave forms in oximeters 112 1991
 
COROMETRICS MEDICAL SYSTEMS, INC. (2)
5,411,024 Fetal pulse oximetry sensor 125 1993
5,634,459 Fetal probe 102 1995
 
DATEX-OHMEDA (2)
2003/0073,890 Plethysmographic signal processing method and system 94 2001
6,697,653 Reduced wire count voltage drop sense 88 2001
 
ELEKON INDUSTRIES USA, INC. (2)
2005/0197,548 DISPOSABLE/REUSABLE FLEXIBLE SENSOR 103 2004
2005/0228,248 Clip-type sensor having integrated biasing and cushioning means 124 2004
 
Futrex, Inc. (2)
5,028,787 Non-invasive measurement of blood glucose 353 1989
5,365,066 Low cost means for increasing measurement sensitivity in LED/IRED near-infrared instruments 108 1992
 
GLT ACQUISITION CORP. (2)
6,280,381 Intelligent system for noninvasive blood analyte prediction 178 1999
6,512,937 Multi-tier method of developing localized calibration models for non-invasive blood analyte prediction 117 2001
 
GOULD ELECTRONICS INC. (2)
5,263,244 Method of making a flexible printed circuit sensor assembly for detecting optical pulses 156 1992
5,390,670 Flexible printed circuit sensor assembly for detecting optical pulses 143 1993
 
ITAMAR MEDICAL LTD. (2)
6,461,305 Pressure applicator devices particularly useful for non-invasive detection of medical conditions 160 2000
6,916,289 Pressure applicator devices particularly useful for non-invasive detection of medical conditions 75 2004
 
KESTREL LABS, INC. (2)
6,647,279 Hybrid optical delivery system for photoplethysmography 94 2002
6,754,515 Stabilization of noisy optical sources in photoplethysmography 113 2002
 
KOWA COMPANY, LTD. (2)
5,522,388 Pulse spectrometer 122 1994
5,575,285 Apparatus for measuring oxygen saturation 162 1994
 
MORTARA INSTRUMENT, INC. (2)
6,697,655 Low power pulse oximeter 117 2001
6,564,077 Method and apparatus for pulse oximetry 116 2001
 
NellcorPuritan Bennett Incorporated (2)
7,016,715 Selection of preset filter parameters based on signal quality 96 2003
7,039,538 Pulse oximeter with separate ensemble averaging for oxygen saturation and heart rate 30 2004
 
NONIN MEDICAL, INC. (2)
5,792,052 Finger clip pulse oximeter 149 1995
5,800,349 Offset pulse oximeter sensor 149 1997
 
OPTO CIRCUITS (INDIA) LTD (2)
5,991,648 Adjustable pulse oximetry sensor for pediatric use 130 1998
6,006,120 Cordless Pulse oximeter 110 1998
 
OSI OPTOELECTRONICS, INC. (2)
6,385,821 Apparatus for securing an oximeter probe to a patient 106 2000
6,681,454 Apparatus and method for securing an oximeter probe to a patient 115 2002
 
PHDX SYSTEMS, INC. (2)
5,673,692 Single site, multi-variable patient monitor 197 1995
6,556,852 Earpiece with sensors to measure/monitor multiple physiological variables 115 2001
 
PROVIDENCE HEALTH SYSTEM - OREGON (2)
6,421,549 Adaptive calibration pulsed oximetry method and device 114 2000
6,760,609 Adaptive calibration pulsed oximetry method and device 112 2002
 
PURITAN-BENNETT CORPORATION (2)
4,883,353 Pulse oximeter 175 1988
4,883,055 Artificially induced blood pulse for use with a pulse oximeter 220 1988
 
SANOFI-AVENTIS DEUTSCHLAND GMBH (2)
6,113,541 Noninvasive blood chemistry measurement method and system 99 1998
2004/0098,009 Method and apparatus for body fluid sampling and analyte sensing 192 2003
 
SOUTHWEST RESEARCH INSTITUTE (2)
4,880,304 Optical sensor for pulse oximeter 157 1987
5,094,239 Composite signal implementation for acquiring oximetry signals 99 1989
 
SPACELABS, INC. (2)
5,158,082 Apparatus for heating tissue with a photoplethysmograph sensor 182 1990
5,055,671 Apparatus for detecting transducer movement using a first and second light detector 102 1990
 
T.M.M. ACQUISITIONS, LTD. (2)
6,031,603 Sensor, method and device for optical blood oximetry 111 1998
6,801,799 Pulse oximeter and method of operation 169 2003
 
THOR TECHNOLOGY CORPORATION (2)
4,964,408 Oximeter sensor assembly with integral cable 322 1988
5,069,213 Oximeter sensor assembly with integral cable and encoder 289 1989
 
VIOPTIX, INC. (2)
6,597,931 System and method for absolute oxygen saturation 117 2000
6,587,703 System and method for measuring absolute oxygen saturation 119 2001
 
WATERMARK MEDICAL, INC. (2)
6,811,538 Sleep apnea risk evaluation 79 2001
7,297,119 Sleep apnea risk evaluation 64 2004
 
A. W. Faber-Castell (1)
5,084,327 Fluorescent marking liquid 90 1989
 
ABBOTT LABORATORIES (1)
2003/0212,316 Method and apparatus for determining blood parameters and vital signs of a patient 101 2002
 
ANTEC SYSTEMS LIMITED (1)
4,697,593 Method and apparatus for measuring blood oxygen levels 132 1986
 
ARISTO MEDICAL PRODUCTS, INC. (1)
5,417,207 Apparatus for the invasive use of oximeter probes 141 1993
 
BANK OF AMERICA, N.A. (1)
4,807,630 Apparatus and method for use in pulse oximeters 132 1987
 
BCI, INC. (1)
5,558,096 Blood pulse detection method using autocorrelation 106 1995
 
BUSCHMANN, JOHANNES (1)
5,891,025 Method of validating and/or calibrating devices used for carrying out photometry of living tissues and a device for implementing said method 106 1997
 
CARDIAC PACEMAKERS, INC. (1)
7,072,703 Medical device with force monitoring features and method therefor 11 2003
 
CARDIO ACCESS LLC (1)
4,819,752 Blood constituent measuring device and method 249 1987
 
CENTURY MEDICAL KABUSHIKI KAISHA (1)
5,807,246 Display device in medical examination and treatment system 113 1995
 
COLIN ELECTRONICS CO., LTD. (1)
4,796,636 Noninvasive reflectance oximeter 160 1987
 
CRITIKON, INC. (1)
5,193,543 Method and apparatus for measuring arterial blood constituents 133 1992
 
CYBRO MEDICAL, LTD. (1)
2002/0042,558 Pulse oximeter and method of operation 159 2001
 
DAEDULUS 1, L.L.C. (1)
5,978,691 Device and method for noninvasive continuous determination of blood gases, pH, hemoglobin level, and oxygen content 150 1997
 
DRAEGER MEDICAL, INC. (1)
4,776,339 Interlock for oxygen saturation monitor anesthesia apparatus 113 1987
 
E FOR M CORPORATION (1)
5,273,036 Apparatus and method for monitoring respiration 205 1993
 
E.P. LIMITED (1)
5,978,693 Apparatus and method for reduction of motion artifact 117 1998
 
ELECTRODE COMPANY LIMITED, THE (1)
6,133,994 Testing device for light emitters 93 1998
 
EPIC MEDICAL PRODUCTS, INC. (1)
2003/0171,662 Non-adhesive flexible electro-optical sensor for fingertip trans-illumination 79 2002
 
FRESENIUS MEDICAL CARE HOLDINGS, INC. (1)
6,681,128 System for noninvasive hematocrit monitoring 100 2001
 
FRONTIER MATERIALS, INC. (1)
5,372,136 System and method for noninvasive hematocrit monitoring 248 1993
 
FUJI PHOTO FILM CO., LTD. (1)
6,151,518 Instrument for measuring concentrations of constituent parts of blood 125 1999
 
GE HEALTHCARE FINLAND OY (1)
6,912,413 Pulse oximeter 89 2003
 
GIV VENTURES PARTNERS LP (1)
6,453,183 Cerebral oxygenation monitor 102 2000
 
GMP/WIRELESS MEDICINE, INC. (1)
2004/0186,358 Monitoring system containing a hospital bed with integrated display 111 2003
 
GRAPHIC CONTROLS CORPORATION (1)
5,474,065 Non-invasive fetal probe 54 1994
 
HALLIBURTON ENERGY SERVICES, INC. (1)
2005/0183,502 Motion-responsive coupled masses 1 2005
 
HEMA METRICS, LLC (1)
6,671,528 Method and apparatus for non-invasive blood constituent monitoring 146 2001
 
HITACHI MEDICAL CORPORATION (1)
2006/0058,594 Measuring probe and living body optical measuring device 89 2003
 
HITACHI, LTD. (1)
5,239,185 Method and equipment for measuring absorptance of light scattering materials using plural wavelengths of light 99 1992
 
HU, SIJUNG, DR (1)
7,263,395 Venous pulse oximetry 77 2003
 
HUTCHINSON TECHNOLOGY INCORPORATED (1)
5,879,294 Tissue chromophore measurement system 177 1996
 
I.S.S. (USA) Inc. (1)
6,078,833 Self referencing photosensor 120 1998
 
IDEAL LIFE INC. (1)
2005/0020,887 Medical monitoring device and system 144 2004
 
IGT (1)
7,001,273 Gaming device having offer and acceptance game with hidden offer 81 2002
 
Imagenix, Inc. (1)
6,622,034 Oximeter sensor with functional liner 106 2002
 
Instrumentarium Oy (1)
6,104,938 Procedure, apparatus and detector for the determination of fractional oxygen saturation 160 1998
 
Invivo Research, Inc. (1)
4,948,248 Blood constituent measuring device and method 175 1989
 
JOBSIS, PAUL D. (1)
6,594,513 Method and apparatus for determining oxygen saturation of blood in body organs 154 2000
 
KABUSHIKI KAISHA TOSHIBA (1)
5,483,646 Memory access control method and system for realizing the same 87 1994
 
KINDERLIFE INSTRUMENTS, INC. (1)
6,594,511 Method and apparatus for determining physiological characteristics 119 2001
 
KNITZA, REINHOLD (1)
5,911,690 Use of a pulse oxymetry sensor device 96 1997
 
LARKACE PTY LTD (1)
6,188,470 Bioenergetic data collection apparatus 93 1999
 
LAU, STEVEN P. (1)
5,505,199 Sudden infant death syndrome monitor 117 1994
 
LAWRENCE MEDICAL SYSTEMS, INC. (1)
4,859,057 Oximeter apparatus 158 1987
 
MALLINCKRODT INC. (1)
7,198,778 Tumor-targeted optical contrast agents 94 2003
 
MAP MEDIZINTECHNIK FÃœR ARZT UND PATIENT GMBH & CO. KG (1)
5,275,159 Method and apparatus for diagnosis of sleep disorders 449 1992
 
Marquette Electronics, Inc. (1)
5,339,810 Pulse oximetry sensor 119 1993
 
MARQUETTE MEDICAL SYSTEMS, INC. (1)
6,061,584 Pulse oximetry sensor 121 1998
 
MASIMO LABORATORIES, INC. (1)
6,850,787 Signal component processor 311 2002
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5,922,607 Measuring process for blood gas analysis sensors 97 1996
 
Medical Physics, Inc. (1)
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Other [Check patent profile for assignment information] (31)
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5,125,403 Device and method for engagement of an oximeter probe 124 1991
5,154,175 Intrauterine fetal EKG-oximetry cable apparatus 117 1991
5,311,865 Plastic finger oximetry probe holder 101 1991
5,193,542 Peripartum oximetric monitoring apparatus 112 1992
5,511,546 Finger apparatus for measuring continuous cutaneous blood pressure and electrocardiogram electrode 131 1993
5,413,100 Non-invasive method for the in vivo determination of the oxygen saturation rate of arterial blood, and device for carrying out the method 131 1994
5,529,064 Sensor device for measuring vital parameters of a fetus during labor and delivery 102 1994
5,830,135 Fuzzy logic alarm system for pulse oximeters 141 1994
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5,619,992 Methods and apparatus for inhibiting contamination of reusable pulse oximetry sensors 128 1995
6,047,201 Infant blood oxygen monitor and SIDS warning device 137 1998
6,939,307 Method and apparatus for monitoring haemodynamic function 78 1998
6,261,236 Bioresonance feedback method and apparatus 105 1998
6,226,540 Measuring process for blood gas analysis sensors 117 1999
6,393,310 Methods and systems for clinical analyte determination by visible and infrared spectroscopy 121 1999
6,510,331 Switching device for multi-sensor array 95 2000
6,553,243 Communicable disease barrier method of use 95 2001
2002/0133,067 New born and premature infant SIDS warning device 87 2001
2002/0028,990 Device and method for monitoring arterial oxygen saturation 93 2001
2002/0128,544 Signal processing apparatus 148 2002
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2003/0018,243 Selectively plated sensor 103 2002
2004/0068,164 Signal processing apparatus 129 2003
2004/0147,824 Manual and automatic probe calibration 100 2004
2004/0204,637 Signal processing apparatus and method 110 2004
2004/0204,638 Signal processing apparatus and method 93 2004
2004/0210,146 Signal processing apparatus 105 2004
2005/0043,600 Low-noise optical probes for reducing ambient noise 94 2004
2005/0177,034 Ear canal sensing device 74 2005
2005/0277,819 Physiological sensor combination 104 2005

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